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目的探讨老年危重患者中心静脉导管冲封管的有效方式。方法将126例老年危重患者按照中心静脉置管时间顺序随机分为实验组和对照组,实验组采用间断脉冲式冲管加脉冲式正压封管,即输液过程中间断脉冲式冲管(冲管间断时间为4h),输液结束后脉冲式正压封管,脉冲频率均>5个/s;对照组采用普通冲封管法。两组冲封管液体均为生理盐水,比较两组导管内赘生物形成情况、导管堵塞发生率及中心静脉导管留置时间。结果两组导管内赘生物形成情况及导管堵塞发生率比较,差异均有统计学意义(均P<0.05);而两组导管留置时间比较,实验组较对照组延长,但差异无统计学意义(P>0.05)。结论间断脉冲式冲管加脉冲式正压封管(脉冲频率均>5个/s)能有效减少老年患者中心静脉导管内赘生物的形成,降低导管堵塞发生率,延长中心静脉导管留置时间,保证老年危重患者输液治疗的顺利进行。
Objective To explore the effective method of stamping and sealing the central venous catheter in elderly critically ill patients. Methods A total of 126 elderly critically ill patients were randomly divided into experimental group and control group according to the order of central venous catheterization. The experimental group was treated with intermittent pulse plus pulse positive pressure, ie, intermittent pulse tube Tube intermittent time 4h), after the infusion of positive pressure pulse sealing tube, pulse frequency> 5 / s; control group using ordinary stamping tube method. The two groups of liquid in the sealed tube were all normal saline. The formation of neoplasm in the two groups, incidence of catheter blockage and central venous catheter indwelling time were compared. Results There was significant difference between the two groups in the formation of neoplasms and in the incidence of catheter blockage (both P <0.05). However, there was no significant difference between the two groups in catheter indwelling time (P> 0.05). Conclusion Intermittent pulsed and pulsating positive pressure sealed tubes (pulse frequency> 5 / s) can effectively reduce the formation of neoplasms in central venous catheters in elderly patients, reduce the incidence of catheter blockage, prolong the time of central venous catheter indwelling, Ensure the smooth progress of the treatment of infusion in elderly critically ill patients.